"We're going to lobby every time we feel it's necessary," said Mike Green, president of United Auto Workers Local 652. "Not just the UAW, this is working people."
Labor groups have already joined together with faith and community groups "who are equally upset about the damaging policies of the Snyder administration," said Sara Wallenfang, a spokeswoman for Michigan's American Federation of Labor and Congress of Industrial Organizations.
Snyder has come under fire for his efforts to swiftly pass the law, which prohibits requirements that workers pay union dues or fees as a condition of employment, in the lame-duck session without holding public hearings. He has called the action pro-worker and argues it will create jobs in the state, but also has previously described it as divisive and repeatedly stressed it wasn't on his agenda.